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Introduction of Animal Physiology …
Introduction of Animal Physiology
by Chong Wan Xuan & Tan Mei Wen (51494 & 54020)
Physiological Adaptation
How animals adapt to their surrounding environment
1)
Allows homeostasis
maintain animal's internal environment
2)
Optimize metabolism
3) In
Response to the changes
of external environment/stimulus
Examples
Hormonal changes
Menstruation
The response of eye pupils to light
Eating, Sweating
Nervousness
Basic functional unit of life
-
Cell
Hormonal Response
Protein Synthesis
Enzymatic Activities
Neuronal Signalling
Cell component
Plasma Membrane
Amphipathic
Hydro
philic
Hydro
phobic
Transportation of Materials:
Selective Permeability
1)
Passive
No ATP
required
E.g.:
Simple diffusion
-Osmosis
Example of protein involved:
Channel Protein
2)
Active
ATP
required
E.g.:
Na+/ K+ pump
Example of protein involved:
Carrier Protein
3)
Bulk
Endocytosis
Phagocytosis
Pinocytosis
Receptor-mediated Endocytosis
Exocytosis